<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>

<button id="submit">提交申请</button>

<script src="js/jquery-3.4.1.min.js"></script>
<script>
    $("#submit").click(function () {
        $.ajax({
            url:"test",
            type:"post"
        })
    })

</script>
</body>
</html>